Introduction

Firebird is a relational database offering many ISO SQL-2003 features
that runs on Linux, Windows, and a variety of Unix platforms. Firebird
offers excellent concurrency, high performance, and powerful language
support for stored procedures and triggers. It has been used in production
systems, under a variety of names since 1981.

Firebird is a commercially independent project (fundation) of C++ programmers,
technical advisors and supporters developing and enhancing a multi-platform
relational database management system based on the source code released by
Inprise Corp (now known as Embarcadero) under the InterBase
Public License v.1.0 on 25 July, 2000. More information about Firebird is
available at » http://www.firebirdsql.org/.

Note:

This extension supports InterBase versions 6 and up and Firebird version 2.0 and up.

This database uses a single quote (') character for escaping add to your
php.ini the following directive(Deprecated in PHP 5.3.0. Removed in PHP 5.4.0):